api5000positive or negative polarity on an API 5000™ LCMSMS System equipped with a Turbo V™ source. Using direct injection analysis of water samples comparable results were obtained asThis AB Sciex API 5000 Triple Quad LCMSMS comes expertly refurbished from GenTech Scientific. Condition: Refurbished. Model: 5000. OEM: AB Sciex. Full-Service Reseller.